Unless otherwise provided in this Regulation, on the basis of customs information that shall be provided upon request of the Commission by the Member States on the annual import volumes by Union importer and by Combined Nomenclature code as listed in Annex I in their respective territories, the Commission shall select the highest annual import volume per Union importer and per Combined Nomenclature code corresponding to no less than 95 % of the total annual volume of imports into the Union for that Combined Nomenclature code as the new threshold to be inserted in Annex I. The Commission shall rely in doing so on the import information for each Union importer provided by the Member States for the previous two years.